Can the HP EliteBook 840 G4 run Windows 11?
Not officially.
CPU not on Microsoft supported list (7th gen Intel; list starts at 8th gen). TPM 2.0 firmware usually present; Secure Boot supported (UEFI).
Typical CPU: Core i5-7300U (7th gen) · Laptop · ~2017
Your options
A. Stay on Windows 10 (for now)
Paid Extended Security Updates for consumers run until Oct 12, 2027. After that, no more security patches.
B. Upgrade RAM / SSD
Up to 32GB DDR4; M.2 NVMe
Approximate: upgrade limits are based on typical configurations and have not yet been checked against the HP spec sheet. Confirm your exact configuration before buying.
Compatible RAM (link coming soon) Compatible SSD (link coming soon)
An upgrade makes the PC faster but does not fix the Windows 11 CPU block.
C. Switch to Linux Mint
Free, familiar desktop, runs well on 6th/7th-gen Intel. Install guide →
Sources: Microsoft supported Intel processors · Google ChromeOS Flex certified models. Last checked Oct 15, 2026.